BIO1 - Cell Biology - Cell Division

What are chromosomes made up of?

• DNA

• RNA

• mRNA

• tRNA

Tags

NGSS.MS-LS3-1

What is a gene?

• A chromosome

• A set of chromosomes

• A section of DNA which codes for a protein

• A section of RNA which codes for a protein

How many chromosomes are found in the nucleus of human body cells?

• 22

• 23

• 44

• 46

How many chromosomes are found in the nucleus of gametes?

• 22

• 23

• 44

• 46

Tags

NGSS.MS-LS3-2

How are the chromosomes arranged in the nucleus of a body cell?

• On their own

• In pairs

• In threes

What are the three main stages of the cell cycle?

• Replication of DNA and synthesis of organelles

• Mitosis

• Meiosis

• Division of the cell

Why is mitosis important?

• Produces additional genetically identical cells

• Produces additional genetically different cells

Tags

NGSS.MS-LS3-2

Describe the first stage in the cell cycle.

• Longest stage - cell gets bigger

• Longest stage - cell gets smaller

• Shortest stage - cell gets bigger

• Shortest stage - cell gets smaller

Describe the second stage of the cell cycle.

• Pairs of chromosomes are put at one end of the cell

• Pairs of chromosomes are separated and one is pulled to either end of the cell

Describe the third stage of the cell cycle

• The nucleus divides

• The DNA replicates

• The cytoplasm and cell membrane divide